Hairpin



Aug. 17 1926.

D. BARTLETT HAIRPIN Filed Feb. 14 ,v 1925 F-IEZ,

atto: mm1

iatented Aug. 17, 1926.

UNITED STATES PATENT orifice.

DANIEL BARTLETT, OF EL RENO, OKLAHOMA, ASSIGNOR TO CHARLES ROBERT BENDIG, 0F PHILADELPHIA, PENNSYLVANIA.

HAIRPIN.

Application filed February 14, 19215. Serial No. 9,229.

This invention relates to new and useful improvements in hairpins.

One object of the invention is to provide a hairpin wherein the legs are so formed that they interlock with each other, and

made in accordance with the present inven ion.

Figure 2 is a side elevation of the same.

Figure 3 is a horizontal sectional View on the line 3-3 ot Figure 1.

Referring particularly to the accompanyin g drawing there is shown a hairpin which is formed from a single length of suitable wire, and includes the leg portions 10, connected at one end by the curved bight portion 11. For a suitable distance from the bight portion, each of the legs is straight, as shown at 12, and is parallel with the other leg. The free end portions, for a` suitable distance, are also straight and parallel, as shown at 13. 'Ihe portions of the legs connecting` these straight portions are formed with the helix turns 1li, those of one leg being coiled in the opposite direction to those of the other leg, as clearly seen in the drawing, there being three helix turns in each leg. The first pair of turns, or those joined directly to the straight portions 12, are overlapped to a certain distance, as are also the other end pair, and the intermediate pair, it being noted, however, that the rst pair and the last pair overlap in the saine direction, while the intermediate pair overlap in the opposite direction thereto. rlhere is thus formed a tortuous path longitudinally between the legs in the plane ot the legs, and a second tortuous path in a plane at right angles to the first plane. Thus, when the legs of the hairpin are thrust into the hair the hair is securely interloclred with the overlapped helix turns thus holding the pin against slipping from the hair, or being withdrawn therefrom, except by the exercise of mild force.

lVhat is claimed is:

1. A hairp-in including leg portions each having a series of helix turns, the helix turns of `one leg portion being coiled in the opposite direction to that of the helix turns of the other leg portion, said helix turns of one leg overlapping the helix turns ot the other leg in approximately the plane ot' the legs.

2. A hairpin including leg portions connected at one end by a bight portion, the portions ot the legs adjacent the bight being straight and parallel, the free ends ol2 the legs being straight and parallel, the intermediate portions ot the legs being formed with oppositely coiled helix turns, every alternate opposite pair of which turns are overlapped in a direction opposite to that of the other alternate opposite paire.

In testimony whereof, I my signature.

DANIEL BARTLETT. 

